2887225391 has 2 divisors, whose sum is σ = 2887225392. Its totient is φ = 2887225390.

The previous prime is 2887225387. The next prime is 2887225417. The reversal of 2887225391 is 1935227882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2887225391 - 2² = 2887225387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2887225321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1443612695 + 1443612696.

It is an arithmetic number, because the mean of its divisors is an integer number (1443612696).

Almost surely, 2^2887225391 is an apocalyptic number.

2887225391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2887225391 is an equidigital number, since it uses as much as digits as its factorization.

2887225391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 47.

The square root of 2887225391 is about 53732.9078963720. The cubic root of 2887225391 is about 1423.9461404362.

The spelling of 2887225391 in words is "two billion, eight hundred eighty-seven million, two hundred twenty-five thousand, three hundred ninety-one".